Home / 13,266.75-19,900.37-10,621.96

Finding the Fourth Proportional to 13,266.75, 19,900.37 and 10,621.96

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Solution

The fourth proportional to 13,266.75, 19,900.37 and 10,621.96 is: 15,933.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.75 : 19,900.37 = 10,621.96 : x
  2. Step 2: Convert to fraction form
    13,266.75/19,900.37 = 10,621.96/x
  3. Step 3: Cross multiply
    13,266.75x = 19,900.37 × 10,621.96
  4. Step 4: Simplify right side
    13,266.75x = 211,380,934.13
  5. Step 5: Solve for x
    x = 211,380,934.13/13,266.75
  6. Step 6: Final answer
    x = 15,933.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.